Wiz Khalifa-led songs of the summer chart returns to Billboard.com

It may have seemed impossible in many parts of the U.S. buried under sheets of snow over the winter, but warm weather has, indeed, finally returned. And, with it comes an annual rite as fun as putting away down jackets and replacing them with coats of sunscreen: predicting what will be the top song of the summer.

Now, we can begin officially making our way toward the answer, as Billboard's annual Songs of the Summer chart returns to Billboard.com.

The 20-position Songs of the Summer running tally (up from 10 in years past) tracks the most popular titles based on cumulative performance on the weekly Billboard Hot 100 chart from Memorial Day through Labor Day. At the end of the season, the top song of the summer will be crowned.

File - PAUL WALKER, an actor perhaps best known for his roles in the 'Fast and Furious' films died in a fiery car crash. He was 40 years old. Los Angeles County Sheriff found a car engulfed in flames when they responded to a report of a collision in the community of Valencia Two people who were found in the car were pronounced dead at the scene, Walker being a passenger in a friend's car, the accident occurred due to speed. Pictured: Sept. 21, 2005 - Westwood, California, U.S. - Actor PAUL WALKER at the 'Into The Blue' Los Angeles Premiere held at Mann's Village Theatre. (Cre

File - PAUL WALKER, an actor perhaps best known for his roles in the 'Fast and Furious' films died in a fiery car crash. He was 40 years old. Los Angeles County Sheriff found a car engulfed in flames when they responded to a report of a collision in the community of Valencia Two people who were found in the car were pronounced dead at the scene, Walker being a passenger in a friend's car, the accident occurred due to speed. Pictured: Oct 09, 2006; Los Angeles, California, U.S. - Actor PAUL WALKER at the 'Flags Of Our Fathers' Los Angeles Premiere held at the Academy Of Motion

File - PAUL WALKER, an actor perhaps best known for his roles in the 'Fast and Furious' films died in a fiery car crash. He was 40 years old. Los Angeles County Sheriff found a car engulfed in flames when they responded to a report of a collision in the community of Valencia Two people who were found in the car were pronounced dead at the scene, Walker being a passenger in a friend's car, the accident occurred due to speed. Pictured: Nov. 26, 2003 - Westwood, California, U.S. - Actor PAUL WALKER at the 'Timeline' World Premiere, benefitting Hollygrove, held at Mann National The

Vin Diesel and Paul Walker in a scene from the film 'The Fast And The Furious', 2001. (Photo by Universal/Getty Images)

Vin Diesel and Paul Walker racing against each other in a scene from the film 'The Fast And The Furious', 2001. (Photo by Universal/Getty Images)

SYDNEY, AUSTRALIA - SEPTEMBER 6: (EUROPE AND AUSTRALASIA OUT) American actor Paul Walker poses at Woolloomooloo on September 6, 2001 in Sydney, Australia. Walker is in Sydney to promote his new film 'Fast and Furious'. (Photo by Sam Ruttyn/Newspix/Getty Images)

WESTWOOD, CA - JUNE 18: Actor Paul Walker attends 'The Fast and the Furious' Westwood Premiere on June 18, 2001 at the Mann Village Theatre in Westwood, California. (Photo by Ron Galella, Ltd./WireImage)

Paul Walker during The World Premiere of '2 Fast 2 Furious' at Universal Amphitheatre in Universal City, California, United States. (Photo by Jon Kopaloff/FilmMagic)

LONDON - JUNE 9: American actors Paul Walker and Eva Mendes arrive at the UK premiere of the film '2 Fast 2 Furious' at the Warner Brothers Cinema West End on June 9, 2003 in London. (Photo by Dave Benett/Getty Images)

LONDON - JUNE 9: American actors Paul Walker and Eva Mendes arrive at the UK premiere of the film '2 Fast 2 Furious' at the Warner Brothers Cinema West End on June 9, 2003 in London. (Photo by Dave Benett/Getty Images)

This year, Wiz Khalifa's "See You Again," featuring Charlie Puth, the Hot 100's current leader, ranks at No. 1 on the maiden Songs of the Summer survey, followed by Taylor Swift's "Bad Blood," featuring Kendrick Lamar. While "Again" has led the Hot 100 for seven weeks, returning to the top this week, it appears to have notable momentum left, having ascended to No. 1 on the Radio Songs chart just last week. "Blood," meanwhile, falls from No. 1 to No. 2 on the Hot 100, but with its life as a single having just begun (with its video premiering at the beginning of the Billboard Music Awards May 17), both songs look like strong contenders for top song of summer as the season starts.

Rounding out the first Songs of the Summer chart's top five, Fetty Wap's "Trap Queen" ranks at No. 3, followed by Walk the Moon's "Shut Up and Dance" (No. 4) and the unofficial song of the winter, Mark Ronson's former 14-week Hot 100 No. 1 "Uptown Funk!," featuring Bruno Mars (No. 5).